摘要
该技术的浓缩温度在20～60℃的条件下,针对当前浓缩方式存在的不足,研究一种新的浓缩技术,主要研究液体温度、填料层高度、风量与浓缩效率和脱水能耗比的关系。液体温度和填料层高度增加,浓缩效率提高,SPC减小,当填料层高度为300mm时,达到一个优值,脱水能耗比达到最低,浓缩效率也达到较高。出口空气湿度达到70%以上情况下,风量增大,浓缩效率提高,SPC减小。本试验当塔出口空气湿度为95.1%,空气温度为37℃,风量为1200m3/h时,浓缩效率和SPC达到最佳状况,分别为6.48kg/h和0.54kW/kg。
Aiming at the shortcomings in nowadays chinese traditiond medicire concentration, this article studies a new type of concentration technology, with a concentration temperature 20～60 ℃. This article also studies the relationship among air flux, air condition, liquid temperature, padding height and concentration efficiency and specific power consumption. With the liquid temperature and padding height increasing, the concentration efficiency goes up and SPC falls down. Padding height of 300 mm is an optimal va...
出处
《食品与机械》
CSCD
北大核心
2007年第5期128-130,共3页
Food and Machinery
关键词
低温浓缩
湿度
浓缩效率
脱水能耗比
Low-temperature concentration
Humidity
Concentration efficiency
Specific power consumption
